Chemistry · 2019
JEE Main · 9 January 2019, Shift 2 · Q41
When the first electron gain enthalpy (Δ_eg H ) of oxygen is -141 kJ / mol, its second electron gain enthalpy is:
When the first electron gain enthalpy $\displaystyle \left(\Delta_{\mathrm{eg}} \mathrm{H}\right)$ of oxygen is $\displaystyle -141 \mathrm{~kJ} / \mathrm{mol}$, its second electron gain enthalpy is :
Official answer
(1)
a positive value
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JEE Main 2019 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.